Electrical heating system



W. WHELAN.

ELECTRICAL HEATING SYSTEM.

APPLICATION FILED AUG. :7. 1918.

1 329,488, Patented Feb. 3,1920.

2 SHEETS-SHEET I.

W. WHELAN.

ELECTRICAL HEATING SYSTEM.

APPLICATION FILED AUG.I7.19I8.

1,329,488. Patented Feb. 3,1920.

2 SHEETS-SHEET 2.

5 Z E1 l 4 27 1 I a I 1 a E: a.

bvenlor 1 '7 MEL/AN WILLIAM WHELAN, OF ST. J OSEPH MISSOURI.

ELECTRICAL HEATING SYSTEM.

Specification of Letters Patent.

' Patented Feb.'3, 1920.

Application filed August 17, 1918. Serial No. 250,357.

To all whom, it may concern:

Be it known that I, WILLIAM WHELAN, a citizen of the United States, residing in the city of St. Joseph and State of Missouri, have invented new and useful Improvements in Electrical Heatin Systems, of which the followin is a speci cation, reference being had to t e accompanying drawings.

This invention pertainsto electrical heating devices, and to devices of this character especially adapted for heatin water in boilers for the purpose of supp ying steam or hot water for heating houses and for like purposes, and is an amplification of my invention on electrical heaters filed June 27,

' 1918, Serial Number 242,143.

This invention has for its object the production of an apparatus for this general purpose embodying the fewest possible parts and with same assembled in a simple, practical and efficient form.

With these objects in view, attention is called to the accompanying drawings, wherein Figure l is a general perspective of a heating system properly constructed and assembled according to my invention, and showing the lay-out of the system as applied to a house, a boiler being located in the basement;

Fig. 2 is a modified formof construction showing the electrical heating elements at- 4 tached to individual radiators in their respective rooms, the basement boiler being done away with;

Fig. 3 is an elevation of the parts and layout shown in Fig. 1'

Fig. 4 is a plan view of the lay-out projected upon the bottom plane;

Fig. 5 is a front elevatlon of the parts and lay-out as shown in Fig. 1;

Fig. 6 is a detail of the expansion tankwith motor mounted thereon, and showing the electrical terminals and knife switch;

Fig. 7 is a detail showing the method of mounting the electrical heaters within the boiler or radiator.

Fig. 8 is a detail showing the method of insulating the boiler'upon its exterior surface- Fig. 9 is a detail showing the structure and formation of the individual heating cylinders;

Fig. 10 is a modification showing a flat form of wick instead of cylindrical, said wick being sandwiched between two perforated metal plates.

Referring more particularly to the drawings, my invention in its preferred construction,

is made up primarily of a plurality of heating units 25, each unit comprising two heating cylinders as 1 and 2 of unequal diameters, so that the heating cylinder 1 will set inside of the heating cylinder 2. These heating cylinders are both perforated with a plurality of holes as shown at 3 and 4. A cylindrical asbestos wick 5 is disposed between the cylinders 1 and 2, and projects, as shown at 6 and 7, at its upper and lower ends beyond the ends of the heating cylinders 1 and 2. These heating units are mounted within the boiler 26 in such position that the lower ends 7 of the asbestos wick 5 extend toward the bottom of the boiler. The heating units 25 are supported in position in the boiler 26 by suitable brackets 27. Suitable electrical conductors as. 8 and 9 are joined to the heating cylinders 1 and 2, and lead therefrom upwardly through the top of the boiler 26, ending in the terminals 11 and 12, and being insulated in passage through the top of the boiler by any suitable means. Wire conductors extend from the terminals 11 and 12, and are joined in circuit with any electrical source as 16. Inthe modification shown in Fig. 10, a flat form of structure is shown. The heating plates 20 and 21 are made fiat, and between them is imposed the flat asbestos wick 22, these elements being clamped together in flat form by means of the clamps 23 and 24 bolted together at their ends. This structure so formed constitutes a heating unit in the flat form corresponding to'the cylindrical form shown at- 25.

The boiler 26 is mountedupon a suitable cement base and is covered with an exterior insulation. 29. In the top is mounted the safety valve 30 and, the temperature gage 31. On the side is mounted a water gage 32 and steam gage 33. A filling pipe 34 enters the top of the boiler and a dram pipe 35 pierces the lower part of the boiler. An expansion tank 36 is located at a suitable point relative to the boiler 26 and is connected with the boiler 26 by the pipe 37 Upon. the top of the expansion tank 36 is mounted the pressure motor 38, havin a plunger 39 playing into the piston 40. he plunger 39 is connected to a horizontal lever 41, the inner end being supported from the bracket 42, and the outer end carrying the weight 43. Upon this lever 41 is mounted the knife switch 44. Electrical terminals 45 and 46 are mounted adjacent to the said pressure motor in such osition that the knife switch 44 will normally fall between and close said terminals. The pressure motor may be set at any required pressure represented Suitable electrical conductors as 47 and 48 extend from the terminals 45 and 46 and are placed in circuit with the aforesaid electrical conductors 8 and 9. Suitable hot water or steam pipes and return pipes 49 and 50 extend from the boiler to the radiator 51.

In operation, tially filled with water. The electric current is turned on, and water being only a partial conductor of electricity, the resulting resistance from the current in passing between the heating cylinders 1 and 2, heats said cylinders, whereby the surrounding water is heated, and a circulating current is established until the entire body of water is heated.

As the water is heated, or as steam is generatedin the boiler, and the same passes to the radiators in the rooms, the rooms become heated. As the pressure in the boiler increases, said pressure is conveyed to the pressure motor 38, and overcomingthe pressure pounds at which same is set, the knife switch 44 is raised, thereby opening the electrical circuit and cutting ofi the current from the heating cylinders 1 and 2, thus stopping a further heating of the water in the boiler 26. As the temperature falls again, the pressure in the tank 36 diminishes, permitting the knife switch 44 to again lower and connect the terminals 45 and 46, thereby reestablishing the current.

If it should happen that all the water in the boiler 26 should become converted into steam, the asbestos wicks 5, acting as insulators, would automatically open the electric current until the steam, becoming condensed, should flow back into the boiler, and as water again close the electric current flowing between the cylinders 1 and 2.

While I have herein described a certain specific manner and method of constructing the elements of my invention, it is understood that I may vary from the same in minor details, not departing from the spirit of my invention so as best to construct a practical device for the purpose intended, as defined in the appended claims.

What I claim to be new and patentable is;

1. An electrical heating system, comprisin pounds.

the boiler or radiator is par-.

nected radiators; electrical ing a source of electricity; a boiler and conducting material; an expansion tank connected to said boiler; a pressure motor mounted on said expansion tank and adapted to respond to the varying pressure in the tank for the purpose of o ing the electrical circuit .a oresaid.

2. An electrical heating system, comprising a source of electricity; a boiler and connected radiators; electrical heating units located within the boiler and in circuit with said source of'electricity, said units being composed of alternately disposed heating plates and absorbent, electrically non-conducting material; an expansion tank connected to said boiler; and means responsive to the varying. pressure in the expansion tank for opening and closing the electrical circuit aforesaid. I

3. An electrical heating system, comprising a source of electricity; a boiler and conheating units located within the boiler and in circuit with said source of electricity, said units being composed of alternately disposed heating plates and absorbent, electrically non-conducting material; all/expansion tank connected to said boiler a thermostat mounted on the expansion tank; electrical conductors extending from the expansion tank and placed in circuit with the source of electricity and heating units aforesaid; and a switch operable by said thermostat for opening and closing said electrical circuit. 4. An electrical heating system, comprising a source of electricity; a boiler with 111- lets, drains, gages and valves attached; radiators suitably connected with said boiler by pipes; a plurality of electrical heating units located within the boiler and in circuit with said source ofv electricity, said units being composed of alternately disposed heating plates and absorbent, electrically non-conducting material; an expansion tank connected to said boiler; a thermostat mounted on the expansion tank; electrical conductors extending from the expansion tank and placed in circuit with the source of electricity and heating units aforesaid; and a switch operable by said thermostat for opening and closing said electrical circuit.

WILLIAM H. BALSINGER,

MARIE C. HECKEL.

emng and clos- I 

